Altcoin Season Index Still at 43: Are Altcoins Ready for a Big Rally?

Updated
October 18, 2025
Gambar Altcoin Season Index Still at 43: Are Altcoins Ready for a Big Rally?

Jakarta, Pintu News – The Altcoin Season Index (ASI) is now around 43, indicating that the market is not yet fully in favor of altcoins and is still in a transition phase between Bitcoin’s dominance and the potential of alt season.

This value signals that some altcoins have performed solidly, but not enough to signal a massive capital shift to the alternative sector. The big question now: will the index continue into the full alt season zone, or return to Bitcoin dominance?

What does the number 43 on the Altcoin Season Index mean?

altseason index
Source: Blockchain Center

Based on CoinMarketCap’s methodology, ASI measures the number of altcoins (from the top 100 coins) that outperformed Bitcoin in the last 90 days. If ≥ 75 altcoins outperform BTC, the index will approach 75-100 – the full alt season mark.

With a score of 43, ASI shows that most altcoins still lost out to Bitcoin in that period. This means more capital flowed into BTC or stablecoins as a defensive choice.

However, 43 is not an absolute bearish signal either – it’s a neutral or transitional zone. The market can move in either direction depending on supporting factors such as institutional inflows, macro sentiment and new financial products.

Read also: Crypto Market Bleeds Again, Why Market Crash Today (10/17/25)?

What are the Strength & Risk Signals for Altcoins Now?

On the one hand, some major altcoins have shown positive performance relative to Bitcoin in the medium term, such as Ethereum and Solana . This trend gives an indication that investors are starting to seek diversification into the alt ecosystem.

However, as analysts at Bitfinex remind us, the full alt season is unlikely to begin until more investment products (such as altcoin ETFs) are widely available. Without an institutional entry point, large inflows into altcoins may be limited.

Another concern comes from the strong dominance of Bitcoin (BTC dominance). If BTC takes over capital flows again, altcoins could be siphoned off funds and underperform. In addition, high volatility in small altcoins could make it difficult for retail investors to exit in the event of a sharp correction.

Conclusion

With the Altcoin Season Index hovering around 43, the crypto market is currently showing a neutral or transitional phase – not quite alt season, but no longer pure Bitcoin season either. For a major altcoin rally, additional confirmation is needed such as an increase in long-term altcoin dominance, institutional inflows, and structured market products that support alt market expansion.

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*Disclaimer

This content aims to enrich readers’ information. Pintu collects this information from various relevant sources and is not influenced by outside parties. Note that an asset’s past performance does not determine its projected future performance. Crypto trading activities have high risk and volatility, always do your own research and use cold cash before investing. All activities of buying and selling bitcoin and other crypto asset investments are the responsibility of the reader.

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